Null-Cell Leukemia, also known as null cell acute lymphoblastic leukemia, is related to arthropathy and leukemia, chronic lymphocytic. An important gene associated with Null-Cell Leukemia is AKAP17A (A-Kinase Anchoring Protein 17A), and among its related pathways/superpathways are Innate Immune System and MIF Mediated Glucocorticoid Regulation. Affiliated tissues include bone marrow and b cells, and related phenotypes are nervous system and liver/biliary system